Study of gravity wave and travelling jonospheric distrubances
Studies in ionospheric F region at low latitudes
Studies on photoelectron flux and thermal structure in the equatorial topside ionosphere
Investigation of the behavious of the ionosphere using beacon satellites
Role of atmosphereic ions on condensation and cloud formation processes.
Study of ionospheric drifts in the F region
Study of electron energy degradation in the ionosphers of Earth and Venus